Phylum Mollusca

More than _____ species of mollusks

• 100,000

• 150,000

• 10,000

• 125,000

Which of the following facts about the Phylum Mollusca is false?

• It is the second largest phylum. 
• There are over 90,000 living species in the phylum. 
• There are 6 classes in the phylum. 
• Organisms in this phylum have a 3 part body plan. 

What is the radula used for?

• Locomotion
• Feeding
• Swimming
• Digging

All mollusks have an external shell.

• True
• False

What TYPE of mollusk is this?

• Bivalve

• Gastropod

• Cephalopod

What does Cephalopod mean?

• means "2-shells"
• means "head-foot"
• means "stomach-foot"

Gastropoda, Bivalva, Cephalapoda are all classes within the Phylum _______. 

• Arthropoda
• Mollusca
• Porifera 
• Cnidaria

What type of body do all Mollusks have?

• Segmented
• Soft
• Rigid
• Clear

Which part of the Mollusk body is the tissue covering the body and secretes the shell?

• Mantle
• Trochophore
• Foot
• Visceral Mass

Which class of Mollusks include squid, cuttlefish and octopus?

• Gastropods
• Bivalves
• Cephalopods
• Polyplacophora